Annotate Ensembl gene IDs with symbols and descriptions
Source:R/07_gene_annotation.R
annotate_genes.RdMaps Ensembl gene IDs to HGNC symbols and Entrez IDs. Uses msigdbr gene mapping as the primary source (always available with msigdbr). Falls back to org.Hs.eg.db + AnnotationDbi if msigdbr is not installed.
Value
Data frame with columns: ensembl_gene, gene_symbol, entrez_gene. Unmappable IDs have NA for symbol/entrez.